baber/WOPTO huggingface dataset:
Patent GB-345549-A (GB)
Title: Improvements in or relating to kinematograph projectors
IPC: G03B21/32
Filed: 1930-05-07
Abstract: 345,549. Kinematograph projectors. KODAK, Ltd., Kingsway, London.-(Assignees of Wittel, O.; 343, State Street, Rochester, New York, U.S.A.) May 7, 1930, No. 14009. Convention date, May 9, 1929. [Class 97 (i).] Film is fed to the gate from the interior of a coil supported on a freely rotatable roller, and a hinged arm engages a groove on the end of the roller to hold the coil in place ; the film may be taken-up on a support comprising a hub of slightly greater diameter than the roller and provided with means enabling the wound film to be transferred to the roller. The roller 11 may have flanges 12, 13, respectively of greater and less diameter than the roller, the smaller flange being grooved to receive the free end of an arm 15 pivoted at 16. The film coil may be surrounded by a spring-metal strip 25 having ends 27 formed as finger grips enabling it to be removed. The shaft 10 carrying the roller may have a squared extension 18 for use in supporting an ordinary spool when desired. The take-up hub comprises a number of arms 34 projecting from a plate 35 secured to a boss 36 having a slot 37 to engage a latch pivoted on a driven shaft 30. A sleeve 40 is slidable on the boss, and carries a flange 41 slotted to accommodate the arms 34. A core 44 is mounted within the arms 34 and comprises a metal strip with inturned ends forming finger grips. A spring-pressed pivoted guiding arm 47 engages the outer convolution of the film during winding. The wound film is removed by pressing the flange 41 along the arms 34, the core 44 being also moved thereby to carry the coil. The strip 25 is then placed in position and the coil is transferred from the core 44 to the roller 11 for further projection. The shaft 30 has a squared end 33 so that it may be used with an ordinary spool.
Patent GB-331629-A (GB)
Title: Improvements in and relating to reflector signs
IPC: G09F13/14
Filed: 1929-05-06
Abstract: 331,629. Du Vallon, G. C. D. de J., and Jago, E. G. May 6, 1929. Signs. - A reflector sign is built up of a series of inclined overlapping reflecting strips arranged behind a stencil and supported at the edges so as to exclude dust and moisture. As shown in Fig. 4, the sign comprises a front glass sheet a, on which opaque letters are formed, and a reflector h made up of a plurality of strips of silvered glass supported at the ends by stepped supports i, k, composed of sheet metal, rubber or other elastic material, said strips being disposed horizontally, vertically or inclined. The stencil a, reflector h and backing are mounted in a U-section frame b. According to a modification wherein the sign is adapted to be viewed from both sides, two reflectors composed of prismatic strips, having inclined internal reflecting surfaces, are placed back to back and each reflector provided with a stencil. Specification 302,703 is referred to.
Patent GB-1531501-A (GB)
Title: Floating harbour
IPC: B63B35/00
Filed: 1975-04-05
Abstract: 1531501 Mooring vessels; floating harbours R J SWIFT 24 March 1976 [5 April 1975] 14045/75 Headings B7A and B7V A floating harbour of U-shape in plan is moored by two anchor chains to a submerged mooring point, the two anchor chains being located at the bow and stern of the harbour. The forward anchor chain may be paid in or out and the after anchor chain is releasable by quick release means in an emergency and is of fixed length. Alternatively the after anchor chain may also be paid in or out on a winch as is the forward anchor chain. By adjusting the length(s) of the anchor chain(s) the harbour's attitude to wind, or tide can be suitably adjusted. As described the harbour is for use as a pilot station and it may be fitted with propulsion units, wind vanes, bow and stern structure and means for suppressing the waves in basin 16. Such means may comprise compressed air which is discharged through nozzles on to the water surface in the basin 16 and which is compressed in a chamber by wave motion.
Patent GB-244135-A (GB)
Title: Process of and apparatus for making emulsions
IPC: B01F27/91
Filed: 1924-06-10
Abstract: 244,135. Kirschbraun, L. June 10, 1924. Emulsions, making.-Bituminous emulsions for use for example in the manufacture of waterproof roofing and boxboard, water-repellent papers, and paints and as a binder for mastic flooring and road-making, are prepared continuously by emulsifying a bituminous material such as pitch, tar, or asphalt, a colloidal clay, such as Bentonite, and water in an emulsifying vessel containing an open-ended chamber through which the mixture is circulated downwardly, the finished emulsion being withdrawn and fresh ingradients added continuously. The bituminous material is heated in a kettle 1 provided with steam coils 2 and a clean-cut door 3 and preferably having compartments used alternately and is withdrawn therefrom by means of a pump 6 through a meter 8 to the outlet line 4, a line 11 being provided to return any excess. All the lines are steam-jacketed. The clav suspension is produced in a blunger 12, stored in a tank 17 and withdrawn as required by a pump 20 to an overhead flow box 21 with dam 22 and overflow line 23. A weir gate 24 operated by a handle 25 adjusts the supply of clay suspension through the pipe 26 to the emulsifier 7. Preferably the pipe 26 leads to an annular space 38 separated from the emulsifier jacket 2<1> by a partition 39 and slits 40 are provided in the inner wall, so that the clay suspension flows in a thin film on to the main body of the emulsion. The emulsifier is provided with a jacketed open-ended cylinder 27 through which the mixture is circulated by means of an agitator 32 and overhead motor 4'. The finished emulsion is discharged through a drawoff line 44, and collecting box 46 to a storage tank 47. When desirable a portion of the emulsion may be pumped to the blunger so that the latter will make a clay suspension already containing some bitumen. The temperature of the emulsifier is maintained approximately at the melting- point of the bitumen used either by adjusting the temperatures of the incoming bitumen and clay suspension or by cooling or heating the jacket. A small quantity of a deflocculating agent, such as ammonium carbonate, may be added to the emulsion, or if the emulsion is to be used in paper-making a flocculating agent such as aluminium sulphate may be added to the clay. The emulsion may be mixed with cellulose fibre or other material in a beater machine before forming the web. Specification 174,114 is referred to.
Patent GB-312637-A (GB)
Title: Improvements in and relating to hydraulic clutches
IPC: F16D31/08
Filed: 1929-05-06
Abstract: 312,637. Junkers, H. May 29, 1928, [Convention date]. Clutches and speed-varying mechanism-A hydraulic clutch has means for controlling the suction and pressure pipes with or without means for controlling the admission of air, said means comprising a single valve member for opening or closing openings in the desired sequence. In the form diagrammatically shown in Fig. 1, liquid passes to the clutch from a tank 20 through a cooler 21, control valve A and passage 10, and is returned through a passage 12 and control valve C. Air may 'be admitted through a valve B, escapes valves 28, 54 are provided, a pump 42 continuously delivers a small quantity of liquid to the clutch and to lubricating points, and a pump 49 returns liquid from a sump 40 to the tank 20. When the clutch is to act without slip, the valve A is opened and the valves B, C are closed. To increase slip, the valve is gradually opened and subsequently the valve A gradually closed. The valves A, B, C are constituted either by a single rotary valve 81, Fig. 6, or by a single piston valve. In the latter case, the valve may comprise parts 61', Fig. 4, with a lost-motion connection between them, the part 64 being an extension 65 adapted to enter a chamber 69 and thus limit the rate of closing the part 64. A rotary air-cooled liquid tank may be employed as shown in Fig. 9. The Specification as open to inspection under Sect. 91 (3) (a) states that the clutch may be regulated by a valve in either the pressure or suction pipe, the other pipe being of small bore or provided with a small throttle aperture. This subject-matter does not appear in the Specification as accepted.
Patent GB-1109618-A (GB)
Title: Ceiling tiles
Inventor: GAMBLEN REGINALD PHILIP
IPC: E04F13/18
Filed: 1966-03-30
Abstract: 1,109,618. Ceiling tiles. BRITISH GYPSUM Ltd. 8 Feb., 1967 [30 March, 1966], No. 14162/66. Heading E1W. A ceiling tile or panel comprises a rectangular body of plasterboard having square edges, the faces and edges of which are covered by a plastics, e.g. polyvinyl chloride, film, and a resiliently compressible strip or strips extending along two edges of the body and set back from the face of the tile or panel. The resilient strips are preferably impermeable by water vapour and may be formed by polyurethane foam bonded to the tile edges. The resilient strip or strips may be on adjacent or opposite edges, and in use the strips are in a state of compression filling all the joints between the tiles.
Patent GB-388609-A (GB)
Title: Method of forming radiator shells and the like
IPC: B21D22/02
Filed: 1932-05-18
Abstract: 388,609. Making radiator shells. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(City Auto Stamping Co. ; Toledo, Ohio, U.S.A.) May 18, 1932, No. 14170. [Classes 83 (ii) and 83 (iv).] Stamping.-In making radiator shells, flat members 1, 4 are united to form a shell 13. The edges of the shell are clamped by tools 35, 31 and 36, 30 whilst a tool 41 deforms the unsupported part of the shell. Surfaces 44, 43 co-operate to set the deformation. The members 1, 4 may be united after the pressing operation.
Patent GB-775620-A (GB)
Title: Means for isolating valve groups in a power converter for high voltage direct current
IPC: H02M7/06
Filed: 1955-05-17
Abstract: 775,620. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 17, 1955 [May 17, 1954], No. 14172/55. Class 38 (2). In a converting system which comprises a number of constituent converters 18, 19 connected in series and having isolating switches 16, 22, 24 on their A.C. and D.C. sides respectively, each constituent converter has in parallel a bypass valve 20 to carry the current when it is out of action and a short-circuiting device 28 to take over the current otherwise carried by the by-pass valve. It is arranged that when the shortcircuiting device 28 is opened it is reclosed if the bypass valves 20 do not take over the current. The short-circuiting device comprises an isolator arm 43 which as it is moved upwards by arm 46 opens the circuit first at contacts 42 where an arc is drawn, and then at contacts 45. The current through the latter contacts is transferred to the coil of a relay 51 which is not operated if the current through it falls as the by-pass valve takes over the load, and the isolator arm continues movement until the arc is broken. If the bypass valve fails to do so the relay operates and moves contacts 54 to control mechanism 47 so that isolator 43 recloses. In a modification a contactor having a resistor in parallel is connected in series with an isolating switch. When the contactor opens, the voltage developed across the resistor causes the by-pass valve to conduct, and the isolating switch then opens, but if the by-pass valve fails the contactor recloses, Figs. 2, 3 (not shown). The place of the by-pass valve may be taken by two of the valves of the constituent converter, or by valves connecting the neutral point of the supply transformer to the direct current terminals.
Patent GB-806717-A (GB)
Title: Process for the deposition of titanium carbide coatings
IPC: C23C16/32
Filed: 1957-05-03
Abstract: A process for the deposition of a titanim carbide coating on an iron-base material comprises heating the material in a hydrogen atmosphere up to 900 DEG -1200 DEG C. and then depositing the coating at said temperature by the reaction of a titanium halide in the form of vapour or gas with a volatile nitrogen- and oxygen-free carbon compound and hydrogen in the presence of chromium and carbon in the solid phase.  The titanium halide may be the bromide, chloride or iodide and the carbon compound may be a hydrocarbon, such as methane, or a hydrocarbon halide, such as monochlorobenzene.  The chromium and carbon may be present at least on the surface of the iron-base material, e.g. the base material may be a steel having a diffusion chromium layer which has been hardened by the diffusion of carbon therein, or a steel which has contents of chromium and carbon sufficient to form chromium carbide.  Suitable base materials of the latter type are steels having the following compositions in per cent by weight, the remainder in each case being iron and up to 1 per cent of each of silicon and manganese:-1) C 1.5-2.5, Cr 10-15, Mo and/or W 1.3-3.0, and <TABS:0806717/II/1> Alternatively, the chromium and carbon may be present at other points in the deposition zone, e.g. plain carbon steels and cast-irons may be coated in the presence of lumps of chromium or in the presence of steels containing at least 1 per cent Cr and 0.5 per cent C, preferably steel containing 12 per cent Cr and 2 per cent C.  The examples relate to the coating of adjusting elements used in automatic machine tools, cold-working tools such as cold-drawing dies and powder-pressing dies, and guide members for wires and threads.  Reference has been directed by the Comptroller toSpecification 785,236.
Patent GB-202418-A (GB)
Title: Improvements in and relating to telephone receivers and similar sound producing devices
IPC: H04R9/02
Filed: 1922-05-20
Abstract: 202,418. British Thomson-Houston Co., Ltd., and Young, A. P. May 20, 1922. Magnets; electromagnets; homopolar machines. -In electrical apparatus, including mercury motors, of the type employing a permanent magnetic circuit, the circuit comprises a central core having a flange, against which is located a number of short bar magnets arranged parallel to the central core. Fig. 3 shows the invention applied to a loud speaker telephone. The bar magnets are arranged against the flange 2 of the core 1 and are secured to a block 6 of non-magnetic material e.g. aluminium. The block 6 also supports an annular pole-piece 4, which co-operates with the core 1 to form an air gap 5. Instead of the annular pole-piece, a number of pole-pieces may be provided. In a modification, instead of employing the block 6, the space is filled with synthetic resin, such as the material known under the registered Trade Mark " Bakelite," which retains the magnetic members in position. Also synthetic resin may be moulded around the outside of the structure. As applied to a mercury motor, which can be used as in integrating meter, an amalgamated copper cup 60 is rotatably mounted in a mercury chamber 5. Eddy-current braking is effected by the provision of grooves 66 in the annular pole-piece 4; or by a copper disc mounted on the shaft 61 and rotating in the air gaps of permanent magnets. Specifications 15937/91, 24212/95, and 14124/02, [all in Class 40, Electric telegraphs &c.], are referred to. The first Provisional Specification states that the core has a separate tapered pole-piece, and the second Provisional Specification that projecting limbs may be used instead of the flange, and that a single annular magnet may be employed instead of the bar magnets.
Patent GB-634642-A (GB)
Title: A new or improved valve for controlling the flow of fluids under pressure
IPC: F16K17/04
Filed: 1946-05-11
Abstract: 634,642. Fluid-actuated valves. GIRLING, Ltd., and HOGG, W. May 11, 1946, No. 14303. [Class 135] [Also in Group XXXII] A valve controlling the flow of a fluid under pressure comprises a rigid ported valve closure sleeve slidable axially in a cylindrical recess in a valve body, and one or a series of elastically deformed discs bearing on one end of the sleeve and on a fixed abutment on the body. As applied to a piston type hydraulic shockabsorber, the valve comprises a cylindrical head a, forming the closure head of the cylinder mounted within a recuperation chamber, and having a flanged stem e, ports f communicating with the cylinder, and ports b controlled by a non-return disc valve c for returning the liquid to the cylinder from the recuperation chamber. A rigid sleeve closure member g formed with a radial part h is subjected on its underside to the pressure in the cylinder and urged towards closure by elastically deformed metal discs k abutting the flange and the sleeve g. When the piston moves towards the valve, the pressure above the piston increases and on reaching a value to overcome the initial deformation of the discs, the sleeve g rises. to uncover the port h and allow liquid to enter the chamber. On the return stroke of the piston, if the pressure in the cylinder falls appreciably below that in the chamber, the disc valve c moves away from the ports b to increase the pressure in the former.
Patent GB-1183721-A (GB)
Title: Control of a Current Converter.
IPC: H02M7/527
Filed: 1967-03-29
Abstract: 1,183,721. Converting. BROWN, BOVERI & CO. Ltd. 29 March, 1967 [31 March, 1966], No. 14331/67. Heading H2F. [Also in Division G3] In an electrical current converter having a controllable switching unit W1, controlled by means which are responsive to an alternating output voltage UR<SP>1</SP> ist  of the unit, a reference voltage UR soll  and a triangular alternating voltage UH 1  of frequency substantially higher than that of the output voltage and reference voltage the converter includes an arrangement deriving a difference voltage from the reference voltage and the output voltage UR<SP>1</SP> ist  which is compared with the triangular voltage UH 1  so as to provide the switching unit W 1  with control signal for controlling the operation of forward and reverse controllable rectifiers in the switching unit W 1 . As shown two switching units W 1 , W 2  form an inverter circuit fed with D.C. from PN and their combined outputs being obtained at R. The output voltage UR<SP>1</SP>ist UR<SP>11</SP> ist  of each switching unit W 1 , W2 is fed back to mixers M 1 , M 2  which are also supplied with the reference voltage UR soll . The output from each mixer forms an error signal which is supplied to control units R 1 , R 2  to be compared with the triangular voltage UH 1 , UH 2 . The auxiliary voltages UH 1  and UH 2  are phase displaced by 180‹ E. A single switching unit may be used for single phase operation (Fig. 1, not shown) and three similar circuits for three phase operation (Fig. 3, not shown). The converter may be used for supplying electrical machines with voltages or currents of low harmonic content as disclosed in Specification 1,108,571, where the rectifying elements are shown as SCR's.
Patent GB-879678-A (GB)
Title: Improvements relating to the hot deformation of metals
Inventor: SCHIEREN KARL HEINZ
IPC: B21J3/00
Filed: 1959-04-28
Abstract: In the hot extrusion, forging or piercing of metals a lubricant is used comprising a normally solid organic material which burns or volatilizes at the working temperature and pressure.  The organic material is preferably polyethylene or polyvinyl chloride. A lubricant sandwich may consist of powdered or granulated polyethylene with a binder of polystyrol and trichlorethylene enclosed between layers of corrugated paper.  In another embodiment, flat discs of lubricant are placed above and below a hot workpiece as it is forged between dies.
Patent GB-145960-A (GB)
Title: An improved fastening or clip for securing the date-blocks of tearoff calendars, memorandum and like blocks of tear-off sheets to their cards or other backings or supports
IPC: B42D5/06
Filed: 1919-06-07
Abstract: 145,960. Lockwood, G. S. June 7, 1919. Date indicators. - A device for securing date blocks to their supports comprises a length of wire bent to form two or more rearw a r d I y projecting tongues b, c adapted to pass through slots in the support g and two forwardly projecting prongs adapted to pass through holes in the date &c. blocks, the parts being secured by bending over the ends of the tongues and prongs as shown.
Patent GB-402416-A (GB)
Title: Improvements relating to sliding clasp fasteners
IPC: A44B19/30
Filed: 1932-05-23
Abstract: 402,416. Sliding - clasp fastenings. WALDES, J., PUC, H., MERZINGER, E., and WALDES, Z., (trading as WALDES A SPOL), Vasovice, Prague. May 23, 1932, No. 14553. Convention date, May 23,1931. [Class 44.] In a sliding-clasp fastener two rows of identical fastener connecting elements are embedded in resilient covering strips such as rubber and the slider is formed with double guides or passages the outer sides of which are defined by guide surfaces 11, Fig. 7, adapted to bear against the strips and press them closely together during the fastening movement of the slider and the inner sides of which are defined by a wedge whose sides comprise pairs of lugs 4, 4<1> adapted to prise the strips and the fastening elements apart during the unfastening movement, each pair of lugs also guiding between them those parts of the fastening elements which project from the strips. The slider may comprise two jaws 1, 2 secured together by a symmetrically shaped bridge 3 constituting the wedge. The slider may be made by bending the blank, which is shown in Fig. 1 and which is stamped from sheet metal into the form shown in Fig. 2, pairs of studs 6, 61 on the bridge 3 being inserted into openings 11, 12 in the jaws 1, 2 and secured to the jaws by rivetting ; the space f2 between the lugs 4, 41 corresponds to the height of the fastening elements. Alternatively the slider wedge may be solid and grooves cut out therefrom to guide the projecting parts of the fastening elements. The slider may have secured thereto a resilient yoke 13 co-operating with a loosely mounted actuating member 14 so that the slider may be locked in any desired position, the bent arms 18 of the actuating member 14 passing through openings 8, 81 in the jaw 2 and engaging the resilient covering strips under the stress of the yoke.
Patent GB-1082630-A (GB)
Title: Process for obtaining pearls of expanded polystyrene
IPC: C08J9/22
Filed: 1966-04-01
Abstract: Pearls of expanded polystyrene are obtained from granules containing a blowing agent by heating the granules with air at 90-110 DEG  C. and then treating with steam at atmospheric pressure. The granules may be pre-expanded by treating with steam before the hot air treatment.  The cycle of heating the granules with air and then with steam may be repeated, the cycles being separated by periods of maturing.  Each cycle may be carried out continuously or at fixed stations.  Pearls of apparent density less than 5 kgm./m.3 can be obtained by this process and may be agglomerated to give blocks, plates and moulded pieces. An apparatus is described in which the granules are conveyed from a hopper between two bands the distance between which increases from the point of entry of the material to the point of exit.  The area between the bands is divided into compartments for circulating steam and hot air over the pearls.
Patent GB-1484856-A (GB)
Title: Refuse-crushing/shredding(or comminuting)machine
IPC: B02C13/282
Filed: 1976-04-09
Abstract: 1484856 Impact pulverizers HAZEMAG DR E ANDREAS KG 9 April 1976 [12 April 1975] 14615/76 Heading B2A Comminuting apparatus, particularly for refuse, comprises a housing 1, 2, 3 Fig. 3 an horizontal beater rotor 5, an impact member 9 cooperative with the beaters of the rotor a crusher track 13 pivotally mounted about a pivot 14 in the housing adjacent the rotor and below the impact member and a crusher grating 20 succeeding the crusher track in a first rotational direction of the rotor and disposed adjacent the lowermost position of the rotor within the housing. The crusher track is positionable in an inoperative position within the housing remote from the rotor by actuation of an hydraulic cylinder 16. The crusher grating is movable via a closable aperture in the housing into an inoperative second position outside the housing on rails 25. The aperture is closed by a flap 28, which may be actuated by the same hydraulic system as the grating, and closed also by a plate 26.